Horizontal Liquid Film-mist Two-phase Flow : 2nd Report, Droplet deposition and entertainment rates

概要

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The information on the characterstics of liquid film, droplet entrainiment, and droplet deposition in a two-phase annular-mist flow is important for planning and designing nuclear reactors and steam generators. The available information is more limited on the characteristics of a liquid film mist flow in horizontal channels, where the gravity is an important factor. The purpose of this work is to clarify various characteristics of a liquid film mist flow in a horizontal rectanglar channel of 150 mm width and 50 mm height. The distribution of liquid droplet flow rates and the gas velocity profile in each cross-section of the channel in the axial direction were measured. The rates of deposition and entrainment were determined, using the distributions of the droplet flow rates obtained by a scoop method. Further, the rate of liquid droplet entrainment was correlated with the geometrical characteristics of the liquid film.
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